Question

For each of the following questions make sure to include your hypotheses, test statistic, p-value or rejection region, and decision in sentence form.

2.ABC Personal Finance company markets it’s personal finance seminar to adults who are considered high-risk borrowers. The company claims their seminar helps adults increase their credit score. A random sample of adults who took the seminar was taken, and their credit scores before, and two years after the seminar were collected. Does this data show the company’s seminar helps adults increase their credit score? Test at the .01 level of significance. Assume credit scores are normally distributed.

Adult	1	2	3	4	5	6	7	8	9	10
Before	608	620	610	650	640	680	655	602	644	656
After	646	692	715	669	725	786	700	650	660	650

Answer 1

Number	Before	After	Difference ( di )
	608	646	38	219.04
	620	692	72	368.64
	610	715	105	2724.84
	650	669	19	1142.44
	640	725	85	1036.84
	680	786	106	2830.24
	655	700	45	60.84
	602	650	48	23.04
	644	660	16	1354.24
	656	650	-6	3457.44
Total	6365	6893	528	13217.6

To Test :-

H₀ :-  

H₁ :-  

Test Statistic :-

Test Criteria :-  

Reject null hypothesis if

Result :- Reject null hypothesis

Conclusion :- Accept Alternative Hypothesis

There is sufficient evidence to support the claim that the company’s seminar helps adults increase their credit score.